Calcium Nitrate Helps Ensure Adequate Potassium Levels for Top Quality Watermelons

Potassium is critical in watermelons for ensuring top quality fruit by determining the level of sugars at harvest and, also, plays a key role in the transport of sugars to fruit.

Potassium - Sugar and TSS

potassium email_fig 27 PM.png

The potassium requirement for watermelon crops remains high until the beginning of fruit ripening. Watermelons have a relatively high potassium requirement compared to nitrogen with over 151 lb/ac being utilized by high-yielding 22 t/ac crops.

Potassium and Yield

potassium email_fig 26 PM.png


Potassium maintains the ionic balance and water status within the plant. It is involved in the production and transport of sugars in the plant; enzyme activation; and synthesis of proteins. It is important to maintain a good balance of potassium with magnesium and calcium. Too much potassium restricts the uptake of these other cations.

Another important reminder when it comes to your nitrogen fertilizer source is that ammonium nitrogen can be antagonistic to the uptake of calcium, magnesium, and potassium. However, nitrate nitrogen promotes the uptake of those nutrients.

The use of YaraLiva® Calcium Nitrate paired with potassium nitrate will ensure adequate potassium and positively influence the sugar development of your fruit.


Nitrate N Promotes Nutrient Balance

nitrate promotes nutrient balance.png

Nitrate nitrogen in YaraLiva promotes uptake of critical nutrients such as calcium, magnesium and potassium.




Did you know that YaraLiva has the lowest Carbon Footprint of any Calcium Nitrate product on the market?

Learn more

Contact your local Yara representative to find a YaraLiva distributor near you.

Related articles:

The Right Nutrient Approach at Watermelon Early Establishment

The Right Fertilizer Program during Flowering and Fruit Set is Essential for High Watermelon Productivity and Quality

Taylor Sewell
Taylor Sewell
Sales Agronomist

North Florida & South Georgia

Dan Clarke
Dan Clarke
Regional Sales Manager

Texas, Oklahoma, Louisiana, Arkansas, Mississippi, Tennessee, Kansas, Missouri, Nebraska, Iowa, Minnesotta, South Dakota, North Dakota, Montana

Brett Dixon
Brett Dixon
Senior Sales Agronomist

Texas, Oklahoma, Louisiana, Arkansas, Mississippi & Tennessee